If your rounding radius (offset) is larger than the available surface area, the geometry will overlap and break the top face. 2. Best Solutions: FredoCorner vs. RoundCorner

Close the component and delete the giant copy. Your original-sized component will now have the rounded corners perfectly filled in because the math was done at a larger scale. 2. Check for Overlapping Offsets

: If holes appear, you can often "heal" them by redrawing a single missing edge with the . SketchUp will usually re-generate the missing face. Check Hidden Geometry View > Hidden Geometry

feet), SketchUp creates "cracks" (softened or hidden lines) to triangulate the surface because it can no longer be a single flat face. Tiny Face Issues : SketchUp has difficulty creating very small faces (under

The "top" of an object is vulnerable because it is often a (a face with more than 4 sides). When the rounding algorithm hits a complex ngon at the top, combined with a sharp curvature, the calculations fail to stitch the mesh closed.

High edge density or "stray" lines on the top face can confuse the plugin. Use an extension like CleanUp³ or Curvizard to simplify the edges of your face before rounding.

To resolve the issue of a crack or gap at the top of a rounded corner in SketchUp, try the following solutions:

Sketchup Round Corner Crack Top [exclusive] Jun 2026

If your rounding radius (offset) is larger than the available surface area, the geometry will overlap and break the top face. 2. Best Solutions: FredoCorner vs. RoundCorner

Close the component and delete the giant copy. Your original-sized component will now have the rounded corners perfectly filled in because the math was done at a larger scale. 2. Check for Overlapping Offsets

: If holes appear, you can often "heal" them by redrawing a single missing edge with the . SketchUp will usually re-generate the missing face. Check Hidden Geometry View > Hidden Geometry

feet), SketchUp creates "cracks" (softened or hidden lines) to triangulate the surface because it can no longer be a single flat face. Tiny Face Issues : SketchUp has difficulty creating very small faces (under

The "top" of an object is vulnerable because it is often a (a face with more than 4 sides). When the rounding algorithm hits a complex ngon at the top, combined with a sharp curvature, the calculations fail to stitch the mesh closed.

High edge density or "stray" lines on the top face can confuse the plugin. Use an extension like CleanUp³ or Curvizard to simplify the edges of your face before rounding.

To resolve the issue of a crack or gap at the top of a rounded corner in SketchUp, try the following solutions: